nextcloud-talk-android/app/src/main/res/layout/controller_operations_menu.xml

<?xml version="1.0" encoding="utf-8"?><!--
  ~ Nextcloud Talk application
  ~
  ~ @author Mario Danic
  ~ Copyright (C) 2017 Mario Danic <mario@lovelyhq.com>
  ~
  ~ This program is free software: you can redistribute it and/or modify
  ~ it under the terms of the GNU General Public License as published by
  ~ the Free Software Foundation, either version 3 of the License, or
  ~ at your option) any later version.
  ~
  ~ This program is distributed in the hope that it will be useful,
  ~ but WITHOUT ANY WARRANTY; without even the implied warranty of
  ~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  ~ GNU General Public License for more details.
  ~
  ~ You should have received a copy of the GNU General Public License
  ~ along with this program.  If not, see <http://www.gnu.org/licenses/>.
  -->

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/controller_operations_view"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <ImageView
        android:id="@+id/result_image_view"
        android:layout_width="48dp"
        android:layout_height="48dp"
        android:layout_centerHorizontal="true"
        android:layout_marginStart="24dp"
        android:layout_marginTop="24dp"
        android:layout_marginEnd="24dp"
        android:layout_marginBottom="8dp"
        android:contentDescription="@null"
        android:tintMode="src_in"
        android:visibility="gone" />

    <ProgressBar
        android:id="@+id/progress_bar"
        android:layout_width="48dp"
        android:layout_height="48dp"
        android:layout_centerInParent="true"
        android:layout_marginTop="24dp"
        android:layout_marginBottom="24dp"
        android:indeterminate="true"
        android:indeterminateTint="@color/colorPrimary"
        android:indeterminateTintMode="src_in"
        android:keepScreenOn="true" />

    <TextView
        android:id="@+id/result_text_view"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@id/result_image_view"
        android:layout_centerHorizontal="true"
        android:layout_marginStart="24dp"
        android:layout_marginEnd="24dp"
        android:layout_marginBottom="12dp"
        android:maxLines="3"
        android:textAlignment="center"
        android:textColor="@color/colorPrimary"
        android:visibility="gone" />

    <com.google.android.material.button.MaterialButton
        android:id="@+id/ok_button"
        style="@style/Widget.MaterialComponents.Button.TextButton"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@id/result_text_view"
        android:layout_alignParentEnd="true"
        android:layout_marginEnd="8dp"
        android:layout_marginBottom="12dp"
        android:background="@color/bg_inverse"
        android:text="@string/nc_ok"
        android:textColor="@color/colorPrimary"
        android:visibility="gone" />

    <com.google.android.material.button.MaterialButton
        android:id="@+id/web_button"
        style="@style/Widget.MaterialComponents.Button.TextButton"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@id/result_text_view"
        android:layout_marginEnd="8dp"
        android:layout_marginBottom="12dp"
        android:layout_toStartOf="@id/ok_button"
        android:background="@color/bg_inverse"
        android:text="@string/nc_join_via_web"
        android:textColor="@color/nc_darkGreen"
        android:visibility="gone" />

</RelativeLayout>